a historic day at the vatican. >> pope benedict xvi spending his last day as pope. christiane amanpour is live in rome. she is joined by cardinal mccarrick. >> reporter: we've been longing to hear a perspective from a cardinal and a cardinal that was there this morning and has so much history with the catholic church and part of the conclave back in 2005 when pope benedict xvi himself was elected. this is a noisy evening. we are very close to a hospital and we can hear the hospitals going by. i will let that go by before i start and turn to the cardinal. cardinal mccarrick, welcome to our program. thank you for joining us. >> it's a trif ledge. you are the best. >> you are so kind. you were there in st. peter's square this morning. >> i was. >> what was your reaction? >> the last one happened in 600 years ago and i'm sure they didn't have that kind of a crowd. the holy father was really saying farewell and said it very beautifully. he's a man of great courtesy and great culture and it was that kind of a presentation. he thanked everybody and this humility comes out,